Today when you set a minimum number of days for a booking, it is set in stone and even if you have a smaller gap between two bookings, those dates will not become available for guests to book because of the minimum stay restriction. For example, if I set 3 day minimum and I have a two day gap between bookings, those days are un-bookable now.
For some, this might be what they want since it might not be feasible to do a smaller booking but a lot of us prefer to take longer bookings but will still take smaller bookings to fill in the gaps. This would help maximize the revenue potential for hosts and make more listings available to the guests. Win Win for both!